package cn.java89.gateway;

import jakarta.servlet.http.HttpServletRequest;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

import java.util.List;

/**
 * @author oldliu
 * @since 1.0
 */
@Component //@Bean?
//web component
public class AccessControll implements GlobalFilter, Ordered {
    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        ServerHttpRequest request = exchange.getRequest();
        HttpHeaders headers = request.getHeaders();
        List<String> token = headers.get("token");
        if (token != null && token.contains("laoliu")) {
            return chain.filter(exchange);
        }
        exchange.getResponse().setStatusCode(HttpStatus.FORBIDDEN);
        return exchange.getResponse().setComplete();
    }

    @Override
    public int getOrder() {
        return 1;
    }
}
